Find probabilities of events

1
EXAMPLE 1
Find probabilities of events
You roll a standard six-sided die. Find the
probability of (a) rolling a 5 and (b) rolling an
even number.
SOLUTION
2
EXAMPLE 1
Find probabilities of events
P(rolling even number)
3
EXAMPLE 2
Use permutations or combinations
Entertainment
A community center hosts a talent contest for
local musicians. On a given evening, 7 musicians
are scheduled to perform. The order in which the
musicians perform is randomly selected during the
show.
4
EXAMPLE 2
Use permutations or combinations
SOLUTION
0.000198
5
EXAMPLE 2
Use permutations or combinations
6
for Examples 1 and 2
GUIDED PRACTICE
You have an equally likely chance of choosing any
integer from 1 through 20. Find the probability
of the given event.
7
for Examples 1 and 2
GUIDED PRACTICE
You have an equally likely chance of choosing any
integer from 1 through 20. Find the probability
of the given event.
8
for Examples 1 and 2
GUIDED PRACTICE